Ecommerce

Decided to develop a very small ecommerce website for myself. I have StoreM4 and CommerceM4 and am sure I can integrate Paypal. Is there any way to add SEARCH (for an item) button and also SORT Button (eg by date/by price/lowest/highest/condition etc). I want to find out if this is fairly east to achieve, else I go back to Zencart(!) in which I am a bit rusty....